ECONOMIC GEOLOGY and the Bulletin of the Society of Economic Geologists, 2005, V 100, N 8, December.

Sedimentary Mineral Deposits and the Evolution of  
Near-Surface Environments
H. D. Holland

Geochemistry of Jasper Beds from the Ordovician 
Lokken Ophiolite, Norway: Origin of Proximal and 
Distal Siliceous Exhalites
T. Grenne and J. F. Slack

Mixing of Sodic and Calcic Brines and Uranium 
Deposition at the McArthur River, Saskatchewan, 
Canada. A Raman and Laser-Induced Breakdown 
Spectroscopic Study of Fluid Inclusions 
D. Derome, M. Cathelineau, M. Cuney, C. Fabre, 
T. Lhomme, and D. A. Banks

Alteration Mineralogy and Stable Isotope 
Geochemistry of Paleoproterozoic Basement-Hosted 
Unconformity-Type Uranium Deposits in the 
Athabasca Basin, Canada
P. Alexandre, K. Kyser, P. Polito, and D. Thomas

Eclogitic and Ultrahigh-Pressure Crustal Garnets 
and Their Relationship to Phanerozoic Subduction 
Diamonds, Bingara Area, New England Fold Belt, 
Eastern Australia
B. J. Barron, L. M. Barron, and G. Duncan

Intrusion-Hosted Mineralization in the Charters 
Towers Goldfield, North Queensland: New Isotopic 
and Fluid Inclusion Constraints on the Timing 
and Origin of the Auriferous Veins
O. P. Kreuzer

Laramide Porphyry Cu-Mo Mineralization in 
Northern Mexico: Age Constraints from Re-Os 
Geochronology in Molybdenite
F. Barra, J. Ruiz, V. A. Valencia, L. Ochoa-Landin, 
J. T. Chesley, and L. Zurcher

Character of the UG2 Chromitite and Host Rocks and
Petrogenesis of Its Pegmatoidal Footwall,
Northeastern Bushveld Complex
E. A. Mathez and J. L. Mey

Scientific Communications


Quantitative Mass Balance of Platinum-Group Elements
in the Kelly Lake Ni-Cu-PGE Deposit, Copper Cliff Offset, Sudbury
M. A. E. Huminicki, P. J. Sylvester, L. J. Cabri, 
C. M. Lesher, and M. Tubrett

Duration of Magmatic, Hydrothermal and Supergene 
Activity at Cerro Rico de Potosi, Bolivia
C. M. Rice, G. B. Steele, D. Barfod, 
A. J. Boyce, and M. S. Pringle


Express Letter

Uranium in Iron Oxide-Copper-Gold (IOCG) Systems
M. W. Hitzman and R. K. Valenta